Home / 2,107.11-3,160.65-1,008.15

Finding the Fourth Proportional to 2,107.11, 3,160.65 and 1,008.15

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Solution

The fourth proportional to 2,107.11, 3,160.65 and 1,008.15 is: 1,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.11 : 3,160.65 = 1,008.15 : x
  2. Step 2: Convert to fraction form
    2,107.11/3,160.65 = 1,008.15/x
  3. Step 3: Cross multiply
    2,107.11x = 3,160.65 × 1,008.15
  4. Step 4: Simplify right side
    2,107.11x = 3,186,409.30
  5. Step 5: Solve for x
    x = 3,186,409.30/2,107.11
  6. Step 6: Final answer
    x = 1,512.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.